Attachment 02 - CDRLs TROPICS.pdf

ATTACHMENT 02

CONTRACT DATA REQUIREMENTS LIST

FOR

TROPICS

TROPICS ATTACHMENT 02 – Contract Data Requirements List 80KSC020R0036

CDRL DESCRIPTION Number: TROPICS-2

INTERFACE CONTROL DOCUMENT (ICD)

DESCRIPTION/PURPOSE:

The ICD identifies and defines the functional and environmental interfaces, and performance requirements of the payload, and payload GSE with the launch vehicle and associated payload/launch processing facilities, as well as the mission success criteria.

Preliminary ICD is the first CDRL release of the ICD and is expected to have several TBD’s. Baseline ICD is the next release of the CDRL and is expected to have very few TBD’s.

DATA REQUIREMENTS:

The number of interface requirement changes incorporated in each new revision and subsequent release of the ICD shall not exceed ten (10) approved requirements changes.

Where there is not a direct match between the specified ICD data requirements identified below and the Contractor’s standard ICD, the Contractor’s standard ICD will be acceptable provided it addresses equivalent content as appropriate to meet payload requirements. The outline below is meant to assure all potential requirements are addressed regardless of payload complexity or risk posture; however any deemed unnecessary requirements based upon manifested payload requirements (upon mutual Government/Contractor agreement) may be listed as not applicable (NA) in the approved ICD:

1.0 INTRODUCTION

1.1 Purpose

1.2 Scope

1.3 Definitions

1.4 Interface Change Control

1.5 Requirement Traceability

1.6 Requirements Status

2.0 APPLICABLE DOCUMENTS

2.1 Government Documents

2.2 Contractor Documents

2.3 Other Documents

3.0 INTERFACE REQUIREMENTS

3.1 Structural /Mechanical Interfaces

3.2 Electrical Interfaces

CDRL DESCRIPTION Number: Continuation of TROPICS-2

3.3 Environmental Interfaces

3.4 Flight Design

3.5 Ground Operations

3.6 Safety Requirements

4.0 MISSION SUCCESS CRITERIA

The Contractor’s proposed criteria to be used to determine the success of the mission. These criteria shall be based on applicable flight related ICD requirements.

The Contractor’s proposed methods, including required vehicle telemetry measurements, ground observation, and analysis/reconstruction techniques, for verifying that each proposed mission success criterion is satisfied. Allowances for sensor measurement accuracy shall be explicitly identified and justified.

CDRL DESCRIPTION Number: TROPICS-3

INTERFACE CONTROL DOCUMENT (ICD) REQUIREMENTS VERIFICATION MATRIX

DESCRIPTION/PURPOSE:

A verification matrix will document and track all ICD requirements and methods by which they will be verified and responsible organization. The verification matrix shall list the final documentation of the verification approved by the cognizant Contractor engineer. NASA does not intend to conduct its own verification of the interface requirements.

DATA REQUIREMENTS:

The verification matrix shall be released no later than CDR and shall be updated upon release of each ICD revision.

Where there is not a direct match between the specified ICD Verification Matrix data requirements identified below and the Contractor’s standard ICD Verification Matrix, the Contractor’s standard ICD Verification Matrix will be acceptable provided it addresses equivalent content:

• ICD requirement language

• ICD requirement paragraph number

• Verification Method (Test, Inspection, Analysis, Demonstration)

• Responsible Organization

• Verification Plan

• Verification Source

• Notes/Comments

• Status

CDRL DESCRIPTION Number: TROPICS-4

PERFORMANCE AND GUIDANCE ACCURACY ANALYSIS (PGAA)

DESCRIPTION/PURPOSE:

This analysis is prepared using the provider-defined trajectory requirements to help provide confidence in meeting the TROPICS requirement.

DATA REQUIREMENTS:

The analysis shall include, as a minimum:

A. The nominal and 3-sigma limits for orbit elements and associated covariance matrix.

B. Performance impacts as a function of launch date and time.

C. Performance capability, margins and reserves, including description of how performance reserve is calculated.

D. Sequence of events and tracking coverage.

E. Time history of trajectory from launch to targeted condition and extending until the launch vehicle propellant and gases are expended.

F. Launch vehicle summary weight statement.

G. Sources and magnitude for all dispersions used. If statistical dispersions are used, then the distribution method (e.g., normal, gaussian) shall be specified for each parameter.

H. Definition of all coordinate systems used.

I. Reference to the source(s) for all payload and launch vehicle inputs to this analysis (e.g., requirements, mass properties).

J. Evaluation of compliance with applicable ICD requirements and constraints.

K. Launch windows determined by analysis.

L. Input file.

M. An itemized list of all modeling changes made since the previous CDRL TROPICS-4 release

(including launch vehicle propulsion, mass properties, aerodynamics, and mission design ground rules), along with an assessment of the performance effect of each change.

CDRL DESCRIPTION Number: TROPICS-5

COUPLED DYNAMIC LOADS ANALYSIS

DESCRIPTION/PURPOSE:

This analysis defines flight loads to payload structure. This analysis also supports pre-flight verification of compliance with mission requirements.

DATA REQUIREMENTS:

A. Describe the models, methodology and forcing functions used.

B. The flight events and conditions that cause the greatest loads on the payload shall be identified and included in the analysis.

C. Output from each flight event shall include maximum/minimum tables of interface accelerations and interface loads as well as interface shock response spectra.

D. One load cycle will be required per mission.

CDRL DESCRIPTION Number: TROPICS-6

QUICK LOOK FLIGHT REPORT

DESCRIPTION/PURPOSE:

After each orbit insertion, a quick look post-flight analysis shall be performed using evaluations of all available vehicle telemetry and insertion performance. A briefing may satisfy the intent of this report.

DATA REQUIREMENTS:

The data report shall include:

(A) Trajectory and performance data

(B) Orbital accuracy estimates

(C) Preliminary vehicle subsystem system performance

(D) Preliminary evaluations

CDRL DESCRIPTION Number: TROPICS-7

FINAL FLIGHT REPORT

DESCRIPTION/PURPOSE:

After the third orbit insertion, a final post-flight report shall be provided. This report will support the NASA Contracting Officer’s mission success determination.

DATA REQUIREMENTS:

This report shall include, in its entirety, the Contractor’s internal post-flight report produced for each orbit insertion.

This report shall include an assessment of each ICD requirement in accordance with the determination methods proposed by the Contractor under CDRL TROPICS-3:

i. Pre-flight prediction of expected flight environments (i.e., acoustic/vibration, quasi-static acceleration, thermal, and pressure) imposed on the spacecraft assembly by the launch.

ii. Post flight determination of actual flight environments imposed on the spacecraft assembly by the launch. If analysis is required to transform launch vehicle measured data to a spacecraft assembly requirement, that analysis should also be included in the report or provided to in a separate document.

iii. Vehicle data verifying the actual separation command sent to the dispenser and vehicle data indicating the launch vehicle state and health just prior to and after the separation command was sent.

iv. Explanation of significant differences between the predicted and actual flight environments.

CDRL DESCRIPTION Number: TROPICS-8

SPACECRAFT INTEGRATED PROCEDURES

DESCRIPTION/PURPOSE:

Site procedures for various operations that involve the payload and/or the launch vehicle/payload interfaces.

DATA REQUIREMENTS:

Provide as a minimum, the following integrated procedures:

A. Payload/ launch vehicle electrical interface verification test for the LV provided separation signal.

B. If applicable, payload encapsulation and transport from or within the payload processing facility to the launch vehicle integration facility/location.

C. Payload/launch vehicle mate (includes payload adapter and vehicle mates, if separate).

D. Fairing installation.

E. Any transport of the payload.